The removal of trimethoprim and sulfamethoxazole by a high infiltration rate artificial composite soil treatment system

Liu, Qinqin; Li, Miao; Zhang, Fawang; Yu, Hechun; Zhang, Quan; Liu, Xiang

doi:10.1007/s11783-017-0920-z

Cited by 32 publications

(6 citation statements)

References 25 publications

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“…Adsorption has been proved to be an effective method for the removal of micropollutants from water and wastewater. 1 Traditional porous adsorbents such as activated carbon and resin usually have limited adsorption capacity for targeted compounds in real wastewater because of the competitive adsorption and slow pore diffusion. 2 Covalent organic frameworks (COFs) have emerged as porous crystalline materials with inherent porosity and periodic molecular ordering structure, 3 which are mainly composed of light elements (C, H, O, and N) by covalent bonding.…”

Section: Introductionmentioning

confidence: 99%

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Stable Covalent Organic Frameworks as Efficient Adsorbents for High and Selective Removal of an Aryl-Organophosphorus Flame Retardant from Water

Wang

Deng

Ren

et al. 2018

ACS Appl. Mater. Interfaces

154

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A critical challenge in environmental remediation is the design of adsorbents with proper pore size for the removal of organic pollutants. Three covalent organic frameworks (COFs) with different pore sizes were successfully prepared by a room-temperature solution-suspension method and used to remove a typical aryl-organophosphorus flame retardant [triphenyl phosphate (TPhP)] from aqueous solution. The prepared COFs showed strong acid resistance and thermal stability. The 1,3,5-triformylphloroglucinol (TFP) reacted with benzidine (BD) (COF2) and exhibited the highest sorption capacity for TPhP, followed by the reaction of TFP and 4,4″-diamino- p-terphenyl (DT) (COF3), and the reaction of TFP and p-phenylenediamine (COF1). Their adsorption equilibriums were achieved within 12 h, and COFs with a larger pore size have higher initial sorption rate but longer time to reach sorption equilibrium. According to the Langmuir fitting, the maximum sorption capacities of three COFs for TPhP were 86.1, 387.2, and 371.2 mg/g, respectively. The density functional theory calculation verified that COF1 with a small pore size prevents TPhP molecules from entering the pores, resulting in extremely low sorption capacity, whereas a relatively too large pore size (COF3) will decrease the sorption energy, which is also not conducive to the adsorption of TPhP. Moreover, the prepared COFs can selectively adsorb TPhP in the presence of coexisting compounds and had high removal of TPhP from actual municipal wastewater, showing a promising application potential for selective removal of micropollutants from water by precisely controlling the COF structure.

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Section: Introductionmentioning

confidence: 99%

“…Adsorption has been proved to be an effective method for the removal of micropollutants from water and wastewater . Traditional porous adsorbents such as activated carbon and resin usually have limited adsorption capacity for targeted compounds in real wastewater because of the competitive adsorption and slow pore diffusion .…”

Section: Introductionmentioning

confidence: 99%

Stable Covalent Organic Frameworks as Efficient Adsorbents for High and Selective Removal of an Aryl-Organophosphorus Flame Retardant from Water

Wang

Deng

Ren

et al. 2018

ACS Appl. Mater. Interfaces

154

View full text Add to dashboard Cite

show abstract

“…Groundwater samples were filtered through a 0.45 μm membrane syringe filter and stored in precleaned polyethylene bottles before analysis for cations (K + , Na + , Ca 2+ , Mg 2+ , and NH 4 + ), anions (Br – , NO 3 – , NO 2 – , SO 4 2– , and Cl – ), and redox-sensitive elements (total Fe and Mn). Samples for SMX analysis were filtered through a 0.7 μm glass microfiber filter (GF/F Whatman) and a 0.22 μm membrane filter and stored in brown glass bottles . Dissolved organic carbon (DOC) samples were filtered through a sterilized 0.45 μm sterilized glass fiber filter.…”

Section: Methodsmentioning

confidence: 99%

“…Samples for SMX analysis were filtered through a 0.7 μm glass microfiber filter (GF/F Whatman) and a 0.22 μm membrane filter and stored in brown glass bottles. 39 Dissolved organic carbon (DOC) samples were filtered through a sterilized 0.45 μm sterilized glass fiber filter. All samples were preserved at 4 °C in a refrigerator until analysis within 2 weeks.…”

Section: Environmental Science and Technologymentioning

confidence: 99%

Determination of Sulfamethoxazole Degradation Rate by an in Situ Experiment in a Reducing Alluvial Aquifer of the North China Plain

Dillon

Zheng

2019

Environ. Sci. Technol.

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Effluents from wastewater treatment facilities are reclaimed for environmental and landscaping use, resulting in infiltration to groundwater. Trace organic contaminants in these effluents have raised concerns, including the antibiotic resistance contributor sulfamethoxazole (SMX) detected frequently at concentrations exceeding 0.01 μg/L. A push–pull study to evaluate in situ degradation of SMX was undertaken in a shallow alluvial aquifer at the Tongzhou groundwater experimental site in southeast suburban Beijing. Ambient groundwater (1000 L) extracted from an experimental well at a depth of 10 m was spiked with SMX and NaBr, and then injected back into the same well. SMX and Br were “stored” over 15 days and monitored in the experimental well and 4 multilevel (depth: 10, 15, 17.5, 20, 25, and 30 m) observation wells located within 2–3 m distance. The concentration of SMX decreased faster than that of Br in the experimental and one observation well at 10 m depth; samples from all other depths contained little Br and SMX. The half-life of SMX degradation is estimated to be 3.1 ± 0.2 and 6.5 ± 0.6 days in the experimental well and observation well, respectively, under suboxic/anoxic conditions.

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“…The researchers are working to develop technologies [14] and strategies [15,16,17,18] to remove various forms of pollutants and contaminants, including pharmaceuticals from water. Recently the most sustainable technology so far developed was adsorption process [19,20,21,22,23,24,25].…”

Section: Introductionmentioning

confidence: 99%

Removal of Trimethoprim from Water using Carbonized Wood Waste as Adsorbents

Adesokan

Giwa

Bello

2021

J. Nig. Soc. Phys. Sci.

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Daniellia—oliveri sawdust-based adsorbents were employed to remove trimethoprim (TMP) from water. The sawdust was thermally carbonized and activated in-stu with ZnCl2 and H3PO4 separately. The adsorbents surface features were profiled using scanning electron microscopic (SEM) and pH point of zero charge (pHpzc ) analyses. The prospects of the adsorbents for the removal of trimethoprim from water were verified. The adsorption processes were performed under different experimental conditions. The adsorption isotherm, the kinetics, and the thermodynamics were studied; and the data fitting output revealed that both chemisorptions and physisorption occurred. Surface and pore diffusion played active role in the adsorption of TMP by the adsorbents. The optimum conditions for adsorption of TMP by the adsorbents were pH at slightly acidic to neutral medium and temperature at room temperature. The fitting isotherm models were: Langmuir (R2 = 0.993) for the zinc-chloride-activated-carbon, Temkin (R2 = 0.962) for the phosphoric-acid-activated-carbon, and the kinetics: pseudo-second order (R2 = 0.997) for both. The maximum monolayer adsorption capacities of the adsorbents for TMP was 4.115 and 6.495 mg/g, respectively. The thermodynamic parameters determined suggested feasibility, spontaneity, and endothermicity of the adsorption processes. The results reveal that the adsorbents were goodprospects for the removal of TMP from water.

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The removal of trimethoprim and sulfamethoxazole by a high infiltration rate artificial composite soil treatment system

Cited by 32 publications

References 25 publications

Stable Covalent Organic Frameworks as Efficient Adsorbents for High and Selective Removal of an Aryl-Organophosphorus Flame Retardant from Water

Stable Covalent Organic Frameworks as Efficient Adsorbents for High and Selective Removal of an Aryl-Organophosphorus Flame Retardant from Water

Determination of Sulfamethoxazole Degradation Rate by an in Situ Experiment in a Reducing Alluvial Aquifer of the North China Plain

Removal of Trimethoprim from Water using Carbonized Wood Waste as Adsorbents

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